Volume

high-resolution terminology - matching measurements at high-resolution

Volume

Description

Volume V is a derived quantity based on the SI base quantity length [m] and is expressed in terms of SI base units in the derived unit cubic meter [m³]. The liter [L = dm³] is a conventional unit of volume for concentration and is used for most solution chemical kinetics. The volume V contained in a system (experimental chamber) is separated from the environment by the system boundaries; this is called the volume of the system, and described in practical language as big/small (derived from length, height) or voluminous. Systems are defined at constant volume or constant pressure. For a pure sample S, the volume V_S of the pure sample equals the volume V of the system, V_S = V. For sample s in a mixture, the ratio V_s·V^-1 is the nondimensional volume fraction Φ_s of sample s. Quantities divided by volume are concentrations of sample s in a mixture, such as count concentration C_X = N_X·V^-1 [x·L^-1], and amount of substance concentration C_B = n_B·V^-1 [mol·L^-1]. Mass concentration is density ρ_s = m_s·V^-1 [kg·L^-1]. In closed compressible systems (with a gas phase), the concentration of the gas increases, when pressure-volume work is performed on the system.

Abbreviation: V [m³]; 1 m³ = 1000 L

Reference: BEC 2020.1

Communicated by Gnaiger E (2020-05-28)

References

Bioblast link	Reference	Year
Bureau International des Poids et Mesures 2019 The International System of Units (SI)	Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216. ISBN 978-92-822-2272-0	2019
Gnaiger 2020 BEC MitoPathways	Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5^th ed. Bioenerg Commun 2020.2. https://doi.org/10.26124/bec:2020-0002	2020
Gnaiger 2020 MitoFit x	Gnaiger E (2021) The elementary unit — canonical reviewer's comments on: Bureau International des Poids et Mesures (2019) The International System of Units (SI) 9th ed. MitoFit Preprints 2020.04.v2. https://doi.org/10.26124/mitofit:200004.v2	2021
BEC 2020.1 doi10.26124bec2020-0001.v1	Gnaiger E et al ― MitoEAGLE Task Group (2020) Mitochondrial physiology. Bioenerg Commun 2020.1. https://doi.org/10.26124/bec:2020-0001.v1	2020